Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6972548 | Pulse frequency modulated voltage regulator capable of prolonging a minimum off-time | Guang-Nan Tzeng, Rong-Chin Lee | 2005-12-06 |
| 6911867 | Error amplifier and DC-DC converter and the method thereof | Guang-Nan Tzeng, Tien-Tzu Chen | 2005-06-28 |